/**
 * @Author ZhangGJ
 * @Date 2021/07/27 06:21
 */
#include <stdio.h>

int main(void) {
    const int days[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31};
    int index;
    for(index = 0; index < sizeof days / sizeof days[0]; index++) {
        printf("Month %2d has %d days.\n", index + 1, days[index]);
    }
    return 0;
}
